7206-51-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 7206-51-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,2,0 and 6 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 7206-51:
(6*7)+(5*2)+(4*0)+(3*6)+(2*5)+(1*1)=81
81 % 10 = 1
So 7206-51-1 is a valid CAS Registry Number.